Isaac newton bogees



(No Model.)

1. N. ROGERS'. SPRING LATCH FOR SGUTTLES, &c. N0.- 33s,674. Patented Jan. 5, -1886.

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QW/a XM #Al UNITED STATES PATENT OEEICE.

ISAAC NEWTON ROGERS, OF NEW YORK, N. Y.

SPRING-LATCH FOR SCUTTLES, 84C.

SPECIFICATION forming part of Letters Patent No. 333,674, dated January 5, 1886.

Application tiled April 2, 1885. Serial No. 161,009. (No model.)

To all whom it may concern:

Be it known that I, Isaac NEWTON RoGEns,

a citizen of the United States, and a resident of New York city, county and State of New York, have invented a new and useful Improvement in Spring-Latches for Fastening Scuttles, Doors, 8vo., of which the following is a specification.

' The object of my invention is to produce an automatic and simple spring-latch fastener for fastening scuttles or doors used for closing openings leading onto the roofs of buildings, or for fastening ordinary doors.

Referring to the drawings, Figure I is a sectional elevation of a scuttle embodying my invention. Fig. 2 is a sectional end view of the same. Fig. 3 is a bottom View of the same. Itigs. 4, 5, and 6 are views showing my in1- proved fastener attached or used on a door.

A is the frame-work of the scuttle or 0pening leading to the roof of building.

Bis the cover, hinged to the frame A by hinge D or any other suitable contrivance.

E is a metallic latch, made of any metal, and consisting of the long arm @,with hook e', and the short arm e2. This latch is pivoted and held to the under side of the lid B by means of the bearings e4 et, which are provided with recesses ff, for the admission or insertion of the trnnnions g g on the latch E, upon which the said latch oscillates. These bearings e4 e* are fastened to thelid by screwssor bolts H H.

I do not confine myself to any particular number oflatches to be used on doors orcovers.

The latch E is held in position shown in Fig. 1 by the spring e, placed between the lever J and the door or cover B, the object of which spring is to throw the arm e of the latch forward so that the device will automatically latch itself.

`J is a lever hinged at one end to the under side of the lid B by hinges K. The otheI` end of said lever is secured to the short arm e2 of the latch byl a bolt, L. This lever J may consist of a narrow strip of wood or a wide board, as shown in Figs. 3 and 4, the inside of lever to be covered with sheet metal.

M is a lug or catch fastened on the inside of frame A, just opposite long arm e of the latch.

' This lug is used for the hook e to engage with when the lid or door is closed. (See Fig. 1.)

Some buildings are provided with a door, WV, (see Fig. 5,) instead of a scuttlecover, as shown in Fig. 1. In these cases I attach my fastener to the door, as shown in said ligure, wherein t-he same principle is observed with such slight mechanical changes as the location suggests.

All that is necessary to open the lid B or door W is to press against the lever J, which will cause the latch to relieve its hold on the lug M. To close the lid or door, simply let the same in place and the latch will autoniatically iock itself, as shown in Figs. l, 4.

By this arrangement a durable and secure automatic fastener is produced for scuttles or r0of-openings, and all doors leading from buildings to the street.

Vhat I claim ism In a spring-latch, the combination, with the latch E, having along arm, e, 'provided with hook e', and a short arm, el, 0f the lever J, hinged to the door, the bolt L, connecting said lever and short arm, the .spring e, and the beveled lug M, substantially as and for the purpose set forth.

ISAAC NEVTON ROGERS.

Witnesses:

EDWIN F. R. LENT, FRANK LENT. 

